Gutter Size

I just got into a new shop and I am in need of some new gutters. The building length I am concerned with is 50' long and a pitch of about 5/12. From the gutter to the peak of the roof is about 24'. Would regular residental gutters, 4" i think, be enough to handle a heavy rain or do I need something more industarial in size? I can provide pics of the building.

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Re:
Gutter Size

Quote:

Originally Posted by River Rat Dad

I see a few guys around here "upsell" residential people to 3x4 downspouts but only install a 2x3 outlet....

LOL I see that alot also. Even worse some guys just punch an X of the gutter and hang the downspout from the flaps. Honestly I tell my customers 2x3 or 3x4 is the same cost. We are going to do what's right for their home.

Or when we are bidding a repair and part of the repair is to install a larger downspout, and they can't understand why I want to change the outlet size. It's like a chain only being as strong as the weakest link, well a gutter is only as large as the smallest hole.

Re:
Gutter Size

Grumpy is right. The cost difference between 2x3 and 3x4, and 3x4 and 4x5 is minimal. Use a 6" gutter (4" is never a good idea. It is rarely large enough and more expensive than 5") and 3x4 downspout. IF there is only one outlet, definatley use a 4x5.

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